@misc{indiciae2fff49ca5625,
  title = {Treatment-resistant depression.},
  author = {G M Simpson and J B Kessel},
  year = {1991},
  doi = {10.1192/bjp.159.1.162b},
  url = {https://pubmed.ncbi.nlm.nih.gov/1888969/},
  note = {Source identifier: 1888969}
}